* {
	margin: 0;
	padding: 0;
}

html {
	height: 100%;
	background-color: #dce0e6;
}

body {
	margin: 0;
	padding: 0;
	height: 100%;
}

div {
	width: 90%;
	margin: 0 auto;
}

img {
	width: 100%;
}

a {
	display: block;
	width: 6em;
	text-decoration: none;
	color: #B4B5B5;
	position: absolute;
	font-size: 1.5em;
	font-family: 微软雅黑,Helvetica, Tahoma, Arial,sans-serif;
	background-image: url(../../images/jiantou.png);
	background-repeat: no-repeat;
	background-position: 5em;
	margin-top: -10%;
	margin-left: 50%;
}